Self Diagnosis Mode

Audio Unit Self Diagnosis 

1. Select Self Diagnosis.
2. Self diagnosis screen is displayed. The bar graph visible in center of screen indicates progress of self diagnosis.
3. Diagnosis results are displayed after the self diagnosis is completed. The unit names and the connection lines are color coded according to the diagnostic results.

   Diagnosis results	Unit	Connection line
   Normal	Green	Green
   Connection malfunction	Gray	Yellow
   Unit malfunction 1	Red	Green

   1: Control unit (audio unit) is displayed in red.

   • Replace audio unit if Self Diagnosis did not run because control unit malfunction is indicated. The symptom is audio unit internal error. Refer to Removal and Installation .
   • If multiple errors occur at the same time for a single unit, the screen switch colors are determined according to the following order of priority: red > gray.
4. Comments of self diagnosis results can be viewed in the diagnosis result screen.

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Audio Unit Self Diagnosis Results 

Audio Unit Confirmation/Adjustment 

1. Select Confirmation/Adjustment.
2. Select each switch on the Confirmation/Adjustment screen to display the relevant trouble diagnosis screen. Press the BACK icon on the touch screen to return to the initial Confirmation/Adjustment screen.

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Display Diagnosis 

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Vehicle Signals 

A comparison check can be made of each actual vehicle signal and the signals recognized by the system.

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Speaker Test 

Select Speaker Test to display the Speaker Diagnosis screen. Press Start to generate a test tone in a speaker. Press Start again to generate a test tone in the next speaker. Press End to stop the test tones.

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Error History 

The self diagnosis results are judged depending on whether any error occurs from when Self Diagnosis is selected until the self diagnosis results are displayed.

However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned ON and then no error has occurred until the self diagnosis start. Check the Error Record to detect any error that may have occurred before the self diagnosis start because of this situation.

The frequency of occurrence is displayed in a count up manner. The actual count up method differs depending on the error item.

Count up method A

• The counter is set to 40 if an error occurs. 1 is subtracted from the counter if the condition is normal at a next ignition ON cycle.
• The counter lower limit is 1. The counter can be reset (no error record display) with the Delete log switch.

Count up method B

• The counter increases by 1 if an error occurs when ignition switch is ON. The counter will not decrease even if the condition is normal at the next ignition ON cycle.
• The counter upper limit is 50. Any counts exceeding 50 are ignored. The counter can be reset (no error record display) with the Delete log switch.

Error item

Some error items may be displayed simultaneously according to the cause. If some error items are displayed simultaneously, the detection of the cause can be performed by the combination of display items

Camera System 

This mode is used to adjust the guide line display position of the rear view camera.

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AV COMM Diagnosis 

• The error counter displays OK if any malfunction was not detected in the past and displays 0 if a malfunction is detected. It increases by 1 if the condition is normal at the next ignition switch ON cycle. The upper limit of the counter is 39.
• The error counter is erased if Reset is pressed.

  Items	Status (Current)	Counter (Past)
  BUS OFF	OK / ???	OK / 0 - 39

  NOTE: "???" indicates UNKWN.

Delete Unit Connection Log 

Deletes any unit connection records and error records from the audio unit memory (clears the records of the unit that has been removed).

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Version Information 

Displays audio system version numbers.

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Initialize Settings 

Deletes data stored from the audio unit.

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